I use my blog as a reference for myself. Today I looked for a picture and description of my 6m si570 (DDS) MEPT test set up here and found I mentioned it but posted nothing.
I thought I had better put the DDS in brackets they are generally getting called DDS now which isn't strictly correct.
So here we go.
Here we see the s1570, SL612 Mixer, 16F628PIC Modulator, 2n3866 equiv PA.
In total 8 active devices 5 IC's and 3 Transistors for 100mWatts of WSPR on 50MHz
